Problem: package phonon-qt5-devel-4.10.2-3.fc31.x86_64 requires pkgconfig(Qt5Core), but none of the providers can be installed - package phonon-qt5-devel-4.10.2-3.fc31.x86_64 requires pkgconfig(Qt5DBus), but none of the providers can be installed - package phonon-qt5-devel-4.10.2-3.fc31.x86_64 requires pkgconfig(Qt5Gui), but none of the providers can be installed - conflicting requests - nothing provides pkgconfig(egl) needed by qt5-qtbase-devel-5.12.4-6.fc31.x86_64